带有内部联接的 SQL 更新查询语法

SQL update query syntax with inner join(带有内部联接的 SQL 更新查询语法)

问题描述

谁能在这个查询中找到我的错误?我正在使用 SQL Server 2000，我想将 CostEntry 表中的所有条目更新为 ActiveCostDetails 表中的相应值.where 子句确实适用于 select 语句.

Can anyone find my error in this query? I'm using SQL Server 2000 and I want to update all entries in the CostEntry table to the corresponding value in the ActiveCostDetails table. The where clause DOES work with a select statement.

    UPDATE CostEntry CE 
INNER JOIN ActiveCostDetails As AD ON CostEntry.lUniqueID = ActiveCostDetails.UniqueID
       SET CostEntry.sJobNumber = ActiveCostDetails.JobNumber
     WHERE CostEntry.SEmployeeCode = '002'
       AND SubString(CostCentre, 1, 1) = sDepartmentCode
       AND substring(CostCentre, 3, 1) = sCategoryCode
       AND substring(CostCentre, 5, 2) = sOperationCode

SET 需要位于查询的 FROMJOINWHERE 部分之前.p>

The SET needs to come before the FROMJOINWHERE portion of the query.

UPDATE CE
SET sJobNumber = AD.JobNumber
FROM CostEntry CE 
    INNER JOIN ActiveCostDetails As AD 
        ON CE.lUniqueID = AD.UniqueID
WHERE CE.SEmployeeCode = '002'
    AND SubString(CostCentre, 1, 1) = sDepartmentCode
    AND substring(CostCentre, 3, 1) = sCategoryCode
    AND substring(CostCentre, 5, 2) = sOperationCode

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